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Title: Numerical simulation of nonlinear processes in a beam-plasma system

In the present paper we consider the efficiency of the electromagnetic radiation generation due to various nonlinear processes in the beam-plasma system. The beam and plasma parameters were chosen close to the parameters in the experiment on the GOL-3 facility (BINP SB RAS). The model of the collisionless plasma is described by system of the Vlasov-Maxwell equations with periodic boundary conditions. The parallel numerical algorithm is based on the particles-in-cell method (PIC) with mixed Euler-Lagrangian domain decomposition. Various scenarios of nonlinear evolution in the beam-plasma system under the influence of an external magnetic field in case of a low density beam were studied. The energy transfer from one unstable mode to the others modes was observed.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Institute of Computational Mathematics and Mathematical Geophysics SB RAS 6 Acad. Lavrentyev Ave., Novosibirsk 630090 (Russian Federation)
  2. University of Maryland, College Park, MD 20742 (United States)
  3. (Russian Federation)
Publication Date:
OSTI Identifier:
22492619
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1684; Journal Issue: 1; Conference: AMiTaNS'15: 7. international conference for promoting the application of mathematics in technical and natural sciences, Albena (Bulgaria), 28 Jun - 3 Jul 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALGORITHMS; BEAM-PLASMA SYSTEMS; BOLTZMANN-VLASOV EQUATION; BOUNDARY CONDITIONS; COLLISIONLESS PLASMA; COMPUTERIZED SIMULATION; DECOMPOSITION; ELECTROMAGNETIC RADIATION; ENERGY TRANSFER; GOL-3 DEVICE; LAGRANGIAN FUNCTION; MAGNETIC FIELDS; NONLINEAR PROBLEMS